HockeyCMS-SHOP/admin/login.php

<?php
// Αρχείο: /var/www/html/hockey-cms/admin/login.php
session_start();
require_once '../config/database.php';

// --- Μηχανισμός Αλλαγής Γλώσσας ---
if (isset($_GET['lang']) && in_array($_GET['lang'], ['el', 'en'])) {
    $_SESSION['lang'] = $_GET['lang'];
}
$current_lang = $_SESSION['lang'] ?? 'el';

$translations = [
    'el' => [
        'login_title' => 'Σύνδεση Διαχειριστή - Hockey CMS',
        'app_name' => 'Hockey CMS - Admin',
        'username' => 'Όνομα Χρήστη',
        'password' => 'Κωδικός Πρόσβασης',
        'btn_login' => 'Σύνδεση',
        'or' => 'Ή',
        'btn_google' => 'Σύνδεση Διαχειριστή με Google',
        'err_empty' => 'Παρακαλώ συμπληρώστε όλα τα πεδία.',
        'err_invalid' => 'Λάθος όνομα χρήστη ή κωδικός.'
    ],
    'en' => [
        'login_title' => 'Admin Login - Hockey CMS',
        'app_name' => 'Hockey CMS - Admin',
        'username' => 'Username',
        'password' => 'Password',
        'btn_login' => 'Login',
        'or' => 'OR',
        'btn_google' => 'Admin Sign in with Google',
        'err_empty' => 'Please fill in all fields.',
        'err_invalid' => 'Invalid username or password.'
    ]
];
$t = $translations[$current_lang];

// Αν ο χρήστης είναι ήδη συνδεδεμένος ως Admin
if (isset($_SESSION['user_id']) && isset($_SESSION['role_id']) && $_SESSION['role_id'] == 1) {
    header("Location: index.php");
    exit;
}

$error = '';
if (isset($_SESSION['login_error'])) {
    $error = $_SESSION['login_error'];
    unset($_SESSION['login_error']);
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = trim($_POST['username']);
    $password = $_POST['password'];

    if (empty($username) || empty($password)) {
        $error = $t['err_empty'];
    } else {
        $stmt = $pdo->prepare("SELECT id, role_id, password, first_name, username, is_seller FROM users WHERE username = ?");
        $stmt->execute([$username]);
        $user = $stmt->fetch();

        // Έλεγχος ότι είναι όντως Admin (role_id == 1)
        if ($user && password_verify($password, $user['password']) && $user['role_id'] == 1) {
            session_regenerate_id(true);
            $_SESSION['user_id'] = $user['id'];
            $_SESSION['role_id'] = $user['role_id'];
            $_SESSION['first_name'] = $user['first_name'] ?? '';
            $_SESSION['username'] = $user['username'];
            $_SESSION['is_seller'] = $user['is_seller'] ?? 0;
            
            header("Location: index.php");
            exit;
        } else {
            $error = $t['err_invalid'];
        }
    }
}
?>
<!DOCTYPE html>
<html lang="<?php echo $current_lang; ?>">
<head>
    <meta charset="UTF-8">
    <title><?php echo $t['login_title']; ?></title>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
    <style>
        :root {
            --primary: #f97316;
            --primary-hover: #ea580c;
            --bg-color: #0b1120;
            --panel-bg: #1e293b;
            --border-color: #334155;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
        }
        body { font-family: 'Inter', sans-serif; background-color: var(--bg-color); display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; flex-direction: column; }
        .login-box { background: var(--panel-bg); padding: 40px; border-radius: 8px; box-shadow: 0 10px 25px rgba(0,0,0,0.5); width: 100%; max-width: 350px; border: 1px solid var(--border-color); }
        .login-box h2 { text-align: center; margin-top: 0; margin-bottom: 25px; color: var(--primary); font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; margin-bottom: 8px; color: var(--text-muted); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
        .form-group input { width: 100%; padding: 12px; background: #0f172a; border: 1px solid var(--border-color); color: var(--text-main); border-radius: 6px; box-sizing: border-box; font-family: 'Inter', sans-serif; outline: none; transition: 0.2s; }
        .form-group input:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.2); }
        .btn { width: 100%; padding: 14px; background: var(--primary); color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 15px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; margin-top: 10px; transition: 0.2s; }
        .btn:hover { background: var(--primary-hover); transform: translateY(-1px); }
        
        .btn-google { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 12px; background: #ffffff; color: #1e293b; border: none; border-radius: 6px; cursor: pointer; font-size: 14px; font-weight: 700; text-decoration: none; margin-top: 15px; transition: 0.2s; box-sizing: border-box; }
        .btn-google:hover { background: #f1f5f9; }
        
        .divider { text-align: center; border-bottom: 1px solid var(--border-color); line-height: 0.1em; margin: 25px 0 20px 0; }
        .divider span { background: var(--panel-bg); padding: 0 10px; color: var(--text-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; }

        .error { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.2); color: #fca5a5; padding: 10px; border-radius: 6px; margin-bottom: 20px; text-align: center; font-size: 14px; font-weight: 600; }
        
        .lang-switch { margin-bottom: 20px; display: flex; gap: 10px; justify-content: center; }
        .lang-switch a { color: var(--text-muted); text-decoration: none; font-size: 13px; font-weight: 700; padding: 4px 10px; border-radius: 12px; transition: 0.2s; }
        .lang-switch a.active { background: var(--border-color); color: var(--text-main); }
        .lang-switch a:hover { color: var(--text-main); }
    </style>
</head>
<body>
    <div class="lang-switch">
        <a href="?lang=el" class="<?php echo $current_lang == 'el' ? 'active' : ''; ?>">GR</a>
        <a href="?lang=en" class="<?php echo $current_lang == 'en' ? 'active' : ''; ?>">EN</a>
    </div>
    
    <div class="login-box">
        <h2><?php echo $t['app_name']; ?></h2>
        <?php if ($error): ?>
            <div class="error"><?php echo htmlspecialchars($error); ?></div>
        <?php endif; ?>
        <form method="POST" action="login.php">
            <div class="form-group">
                <label><?php echo $t['username']; ?></label>
                <input type="text" name="username" required>
            </div>
            <div class="form-group">
                <label><?php echo $t['password']; ?></label>
                <input type="password" name="password" required>
            </div>
            <button type="submit" class="btn"><?php echo $t['btn_login']; ?></button>
        </form>

        <div class="divider"><span><?php echo $t['or']; ?></span></div>

        <!-- Κουμπί Google Login για Admin -->
        <a href="google_login.php" class="btn-google">
            <svg width="18" height="18" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><path fill="#EA4335" d="M24 9.5c3.54 0 6.7 1.22 9.21 3.6l6.85-6.85C35.9 2.38 30.47 0 24 0 14.62 0 6.51 5.38 2.56 13.22l7.98 6.19C12.43 13.72 17.74 9.5 24 9.5z"/><path fill="#4285F4" d="M46.98 24.55c0-1.57-.15-3.09-.38-4.55H24v9.02h12.94c-.58 2.96-2.26 5.48-4.78 7.18l7.73 6c4.51-4.18 7.09-10.36 7.09-17.65z"/><path fill="#FBBC05" d="M10.53 28.59c-.48-1.45-.76-2.99-.76-4.59s.27-3.14.76-4.59l-7.98-6.19C.92 16.46 0 20.12 0 24c0 3.88.92 7.54 2.56 10.78l7.97-6.19z"/><path fill="#34A853" d="M24 48c6.48 0 11.93-2.13 15.89-5.81l-7.73-6c-2.15 1.45-4.92 2.3-8.16 2.3-6.26 0-11.57-4.22-13.46-9.91l-7.98 6.19C6.51 42.62 14.62 48 24 48z"/><path fill="none" d="M0 0h48v48H0z"/></svg>
            <?php echo $t['btn_google']; ?>
        </a>
    </div>
</body>
</html>